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The race to build fitness app Endomondo

7 July 2014 Last updated at 18:42 BST

Mette Lykke left her job as a management consultant at prestigious US consultancy McKinsey to found her own firm.

She is now chief executive of Endomondo - a sports tracking app that allows fitness fans to monitor their progress.

After seven years the app she and her two co-founders created has 25 million users.

She explains how she has turned the business from an idea into a profitable business.

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